What's not to like about animals and inanimate objects setting up house together?
This is one of those stories where the members of the house trade jobs and find they never really appreciated what the others did. Only instead of a farmer and his wife (as in Wanda Gag's Gone is Gone, among others) we have a Mouse, a Bird and a Sausage. Bird's job was to bring back wood for the fire, Mouse ported water back to their home and Sausage did the cooking.
Only the logic of a fairy tale would allow a sausage to slide through the stew just before mealtime to make sure everything was salted and seasoned. And exactly how long could a sausage be called on to flavor a meal before it was little more than flavorless meat in a casing?
After a trade of duties Sausage goes off to fetch firewood but is eating by a passing dog. When Sausage doesn't return from his chore Bird fetches the firewood, found out the dog ate her housemate, and flew back to tell Mouse. Distressed the attempt to carry on, Mouse tending the cooking. Just before serving Mouse slips into the pot to season the meal but never slips out, having become one with the stew. Bird didn't see this, and distracted at having lost two friends, inadvertently sets the house on fire. Going to fetch water Bird is dragged down the well with the bucket and drowns.
There's your cheery bedtime story, kiddies. Now sleep tight.